A105822: Is it a permutation of positive integers?

זקיר סעידוב - ד\"ר/Zakir Seidov Ph.D. zakirs at yosh.ac.il
Fri Apr 22 09:22:48 CEST 2005


Dear SeqFans,
just submitted A105822 (see below). 
 
My request to SEQGurus:
Is it a permutation of positive integers? 
Among first 2000 terms, 
first missing numbers are 233, 349, 394, 443, 449.  
Thanks,
Zak
 

	%I A105822
	%S A105822 
	1,2,3,5,8,4,12,7,10,17,6,11,21,32,13,19,14,33,20,28,24,27,42,40,18,9,35,44,39,54,48,22,15,37,
	52,89,30,59,23,36,99,70,16,86,47,45,92,65,157,34,123,135,222,56,136,82,29,53,102,155,25,130,
	87,43,170,213,63,150,57,66,96,72,60,100,125,111,236,91,145,74,71,154,177,81,258,95,112,64,
	156,55,50,105,98,203,31,84,115,106,77,183,144,327
	%N A105822 For n > 2, a(n) > 0 not appeared previously is such that 
	a(n-1)^2+4*a(n-2)*a(n)=d^2 is a minimal square, a(1)=1, a(2)=2.
	%C A105822 Is it a permutation of positive integers? 
	Among first 2000 terms, first missing numbers are 233, 349, 394, 443, 449.  
	The sequence depends on seed terms a(1) and a(2); if a(1) = 1, a(3) = a(2)+1. 
	Values  of d^2 in A105823. Cf. A105734.
	%Y A105822 A105734, A105823.
	%O A105822 1
	%K A105822 ,nonn,
	%A A105822 Zak Seidov (zakseidov at yahoo.com), Apr 22 2005
	

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